Sandro Pinna Paolo Lorrai Michele Marchesi Nicola Serra Developing a Tool Supporting XP Process. 151-160 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2753&spage=151 2003 conf/xpu/2003xpu XP/Agile Universe db/conf/xpu/xpu2003.html#PinnaLMS03